How to use Python 3 with Google App Engine's Local Development Server

Question

I\'ve got a local Python application configured with

runtime: python

in it\'s app.yaml file. When starting the local developme

Answer 1

Using the Local Development Server is applicable to the first generation standard environment apps only.

For running locally flexible env apps see Running locally:

You run your application locally with the native development tools that you usually use.

For example, you can usually run a Flask application with Flask's development server using:

python main.py

Django applications can be started using:

python manage.py runserver

Related: How to tell if a Google App Engine documentation page applies to the standard or the flexible environment

Update:

Support for the 2nd generation standard environment is limited, see Python 3.7 Local Development Server Options for new app engine apps